Home / 11,745.45-16,208.37-6,440.09

Finding the Fourth Proportional to 11,745.45, 16,208.37 and 6,440.09

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Solution

The fourth proportional to 11,745.45, 16,208.37 and 6,440.09 is: 8,887.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,745.45 : 16,208.37 = 6,440.09 : x
  2. Step 2: Convert to fraction form
    11,745.45/16,208.37 = 6,440.09/x
  3. Step 3: Cross multiply
    11,745.45x = 16,208.37 × 6,440.09
  4. Step 4: Simplify right side
    11,745.45x = 104,383,280.51
  5. Step 5: Solve for x
    x = 104,383,280.51/11,745.45
  6. Step 6: Final answer
    x = 8,887.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.